scholarly journals Experimental Study of Heat Transfer Rate in Single and Series Cross Flow Heat Exchanger using Matlab Coding

2020 ◽  
Vol 10 (1) ◽  
pp. 273-280
Keyword(s):  
Memory Management ◽  
Cross Flow ◽  
Limited Resources ◽  
Medical Instrumentation ◽  
Home Automation ◽  
Power Devices ◽  
High Demand ◽  
Efficient Utilization ◽  
Flow Heat ◽  
Interactive Services

In the present technical era, we are extremely dependent on technological applications such as internet, multimedia, social media, home automation, industrial automation, medical instrumentation, web technology so on and so forth. Moreover, as a backbone such applications are supporting the research related to science and technology in turn. There are certain technologies for example Wireless Sensor Network, IOTs, Artificial Intelligence, and Cloud Computing etc., working behind these applications as unseen hands. Nowadays in all these facilities, there is much more advancement and high demand for real-time applications to serve interactive services. Such necessities enforce the technologies to upgrade themselves to their next level. As such, in WSN, the existing Operating Systems also should upgrade interms of different concerns such as memory management, scheduling techniques, power supply scarcity issues and overall efficient utilization of available limited resources. In this regard, here is an attempt to improvise TinyOS, which is the popular OS for WSN and IOT. The survey on WSN applications reveals, what sort of improvisations are necessary to fulfill the requirements of varieties of applications. In that direction, for more efficient scheduling of tasks based on the situation, new technique is required. Being the best OS for low power devices of WSN and IOT, TinyOS hinders to support many application those need different type of scheduling than FCFS, which is the only scheduling technique for TinyOS. Hence, Integration of new Priority arbiter as a first step of main scheduler improvisation is the essence of this paper.

scholarly journals Priority Arbiter for Tiny OS: The need of renown OS for WSN and IoT

2020 ◽  
Vol 10 (1) ◽  
pp. 281-286
Keyword(s):  
Memory Management ◽  
Wireless Sensor ◽  
Limited Resources ◽  
Medical Instrumentation ◽  
Home Automation ◽  
Power Devices ◽  
High Demand ◽  
Efficient Utilization ◽  
Interactive Services ◽  
Scheduling Technique

In the present technical era, we are extremely dependent on technological applications such as internet, multimedia, social media, home automation, industrial automation, medical instrumentation, web technology so on and so forth. Moreover, as a backbone such applications are supporting the research related to science and technology in turn. There are certain technologies for example Wireless Sensor Network, IOTs, Artificial Intelligence, and Cloud Computing etc., working behind these applications as unseen hands. Nowadays in all these facilities, there is much more advancement and high demand for real-time applications to serve interactive services. Such necessities enforce the technologies to upgrade themselves to their next level. As such, in WSN, the existing Operating Systems also should upgrade interms of different concerns such as memory management, scheduling techniques, power supply scarcity issues and overall efficient utilization of available limited resources. In this regard, here is an attempt to improvise TinyOS, which is the popular OS for WSN and IOT. The survey on WSN applications reveals, what sort of improvisations are necessary to fulfill the requirements of varieties of applications. In that direction, for more efficient scheduling of tasks based on the situation, new technique is required. Being the best OS for low power devices of WSN and IOT, TinyOS hinders to support many application those need different type of scheduling than FCFS, which is the only scheduling technique for TinyOS. Hence, Integration of new Priority arbiter as a first step of main scheduler improvisation is the essence of this paper.

Heat and Mass Transfer to Air in a Cross Flow Heat Exchanger with Surface Deluge Cooling

2016 ◽  
Vol 24 (01) ◽  
pp. 1650002 ◽  
Author(s):  
Andrea Diani ◽  
Luisa Rossetto ◽  
Roberto Dall’Olio ◽  
Daniele De Zen ◽  
Filippo Masetto
Keyword(s):  
Heat Exchanger ◽  
Heat Flow ◽  
Flow Rate ◽  
Data Center ◽  
Heat Dissipation ◽  
Cross Flow ◽  
Critical Conditions ◽  
Heat Flow Rate ◽  
External Temperature ◽  
Flow Heat

Cross flow heat exchangers, when applied to cool data center rooms, use external air (process air) to cool the air stream coming from the data center room (primary air). However, an air–air heat exchanger is not enough to cope with extreme high heat loads in critical conditions (high external temperature). Therefore, water can be sprayed in the process air to increase the heat dissipation capability (wet mode). Water evaporates, and the heat flow rate is transferred to the process air as sensible and latent heat. This paper proposes an analytical approach to predict the behavior of a cross flow heat exchanger in wet mode. The theoretical results are then compared to experimental tests carried out on a real machine in wet mode conditions. Comparisons are given in terms of calculated versus experimental heat flow rate and evaporated water mass flow rate, showing a good match between theoretical and experimental values.

Sign in / Sign up

Export Citation Format

Share Document